Dapol D104 Class 56 Coal Sector 56094. tested and runs both ways with working lights.
Hornby X8795 Dapol / Mainline Class 56 Contacts & Capacitor Set
Hornby X8443 Mainline / Dapol Class 56 Plastic Buffers Pk4
Hornby X8442 Traction Tyres For Older Class 56 Loco Pack of 4 +Dapol & Mainline